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F. G.& A. 0.1SARGBNT.-

FIBER DRIER.

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FIBERv DRIBR.

No. 355,559. Patente@ 5511.4, 1887.V

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` -UNITI-:Dv lSTATES f PATENT VOFFICE.

FREDERICK SARGEN T y"AND ALLAN C. SARGEN T, vOF, GRANITEVILLE, MASS.

FIBER-omen. l

sPncrrrcAi-IQN forming part ef Letters Patentino. 355,559, dated January 4, 1887. Application filled February 1, 1886. Serial No,190,527. (Fo model.)

To all whom. it may concern.:

Be it known that weFRnDERIcK G. SAR- GEN'r and ALLAN C. SARGENT, of Graniteville, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Fiber-Drying Machines, of which the following is a specication.

Our invention relates to machines for drying ber; and it consists in certain improvements in the machine patented to us Novemberk 11,1884, in Letters Patent No. 307,873, substantially as hereinafter described and claimed.

-In the drawings, Figure lis a side elevation of one side of a drier with the casing partly broken away to showits internal construction. Fig. 2 is a similar elevation of the opposite side of the machine. Fig. 3 is a transverse section across the machine on the line Y Y of Fig. 1l. line X X of Fig. 1. Fig. 5 is a longitudinal section through a portion of the machine at one end. Fig.'6 is adetail view of thedamperreversing mechanism.

A is the casing of the machine, which `is a double machine-that is, it has two sets of-reversible dampers and air-passages connected with a single traveling screen-apron and upper screen, thereby enabling the ber to be subjected to more powerful alternating aircurrents for a longer time in passing through the machine. This arrangement also facilitates the heating and drying of the air-currents.

E E are the revolving drums carrying the woven-wire apron F.

F is the screen stretched horizontally above the apron.

C is one of the air-blast fans, and C is the other. f

D is the air-inlet spout,and d is the steampipe to heat the air when admitted. This airinlet pipe is provided with a damper, d. As in our former machine, the air entering inletpipe D from outside passes down and through fan O', pastthe reversible damper ,1, Fig. 3, and thence out through the passage C2, opposite the fan, there being no second fan in this passage, as in our former machine. The direction of the passage of the air-currents past the vibrating damper I alternately up and down through the traveling apron F and Fig. 4 is a transverse section on the screen F are the same as described in our said tire side of the machine to and over the second fan, C, conveying thc airto the latter. In this passage are placed two sets of pipes, PP',

one set, P, being connected to a cold-water pipe, in order that the air from the wool-will be suddenly reduced iu temperature when coming in contact with it, and the other set,]?, being connected to a steam-generator to again heat the air as it passes to fan C, and prepare' .it to again take up moisture from the ber.

The drip-pipe p of the set of cold-water pipes P allows the water deposited from the air-current to run off.

-The fan C sends the air-current through a second reversing-damper, l, vibrated by drum E, Fig. 4, and the apron F and screen F in alternating currents and through passage C3 into passage D, whence it either passes out at the top, past damper d2, when vthe latterl is open, or when the latter is closed passes along air-ue D3 to the top of air-inletiiue D, whence it traverses around inthe machine again, as described. I

'In' the ue D3 is placed a'set of cold-water pipes, P3, forming a condenser for the air passing through it,and yremoving its surplus water before it again enters passage D.

Each division of the machine is completein itself, composed of o ne fan and damper 1,' and is separated from the other by partitions and a yielding ap constructed as described, and letteredl f in our said former patent, as is also the last division from the outer air.

It'will be seen that by this construction of the parts we are enabled to take our air-cur'- rents for drying the ber directly from the outside of the machine and discharge them outside, or we can continually use the same air over again, or we can take a portion from the outer air and use a portion over again. This is of great advantage, as we can thus rregulate 'the amount of moisture in our drying air-currents with the greatest accuracy by simply moving the dampers d d2 from closed `to open, or the reverse. y

What we claim as new land of our invention is'- y 1. The combination of screen F', traveling perforated apron F, fan C and its reversible damper I, air-passage D, and fan C and its reversible damper I, said air-passage forming a conduit for conveying the air from the firstmentioned apron and fan to the second ones, substantially as described.

2. The combination of the screen F', trav` eling perforated apron F, fan C' and its reversi ble damper I, air-passage D2, provided with one or more sets of pipes for steam or water, and fan C and its reversible damper I, said air-passage forming a conduit for conveying the air from the first-mentioned apron and fan to the second ones, substantially as described.

3. The combination of the screen F', travcling perforated apron F, air-inlet passage D to thev same, provided with damper d', fan C' and its reversible damper I, said air-passage forming a conduit for .conveying the air from the iirst-mentioned apron and fan to the second ones, fan C and its reversible damper I, air-passage D', leading therefrom, andiiue D3, connecting passages D' and D, substantially as v described.

4. The'eombination o'f the screen F', travcling perforated apron F, air-inlet passage D to the same, provided with damper d', fan C and its reversible damper I, air-passage D", said air-passage forming a conduit for conveying the air from the first-mentioned apron and fan to the second ones, fan C and its reversible damper I, air-exit passage D from the latter and its damper dl,and flue D, connecting passages D and D, substantially'as described.

5. The combination of a single traveling perforated apron, F, with two fans in separate compartments and adapted to force air-eurrents through said apron, and the air-passage D2 and D D3, D forming another passage connecting said compartments and respectively provided with one or more sets of pipes for steam or water between said compartments, substantially as described.

FREDERICK G. sARGENT. ALLAN e. SARGENT.

Witnesses:

ARTHUR B. PLIMPTON, WALTER C. WRIGHT. 

